There seem to be a few documents around (look on index) telling you how to install the Citrix online plugin for your PC. I thought it might useful to make some notes about how to get started on a Mac.

You can Google the "Citrix online plugin for Mac" and the link I found was:
http://www.citrix.com/English/ss/downloads/details.asp?downloadId=2303485&productId=186&c1=sot2755#top

Download and install the plugin - not the Citrix receiver.

Session 6/9/2012 - start 7:20pm, SSL error and failure at 7:24pm
Next session 6/9/2012 was stable from 7:25pm until 7:37pm when I logged off.